492075

Appears in sequences

• a(n) = (n+1)*(n+6)*3^n/6.at n=9A080420
• G.f.: (1+x+x^2+2*x^5-2*x^10)/(1-3*x^3).at n=37A213933
• The greedy sequence of real numbers at least 1 that do not contain any 9-term geometric progressions with integer ratio.at n=9A235060
• Number of divisors of the n-th positive number that is both triangular and square.at n=44A242585
• Odd exceptional numbers: odd k such that A005179(k) < A037019(k).at n=25A331613